ms/blueprintsprocessor/modules/commons/rest-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/rest/service/BasicAuthRestClientService.kt

   1 /*
   2  * Copyright © 2017-2019 AT&T, Bell Canada, Nordix Foundation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.ccsdk.cds.blueprintsprocessor.rest.service
  18
  19 import org.apache.http.message.BasicHeader
  20 import org.onap.ccsdk.cds.blueprintsprocessor.rest.BasicAuthRestClientProperties
  21 import org.springframework.http.HttpHeaders
  22 import org.springframework.http.MediaType
  23 import java.nio.charset.Charset
  24 import java.util.Base64
  25
  26 open class BasicAuthRestClientService(
  27     private val restClientProperties:
  28         BasicAuthRestClientProperties
  29 ) :
  30     BaseBlueprintWebClientService<BasicAuthRestClientProperties>() {
  31
  32     override fun getRestClientProperties(): BasicAuthRestClientProperties {
  33         return restClientProperties
  34     }
  35
  36     override fun defaultHeaders(): Map<String, String> {
  37
  38         val encodedCredentials = setBasicAuth(
  39             getRestClientProperties().username,
  40             getRestClientProperties().password
  41         )
  42         return mapOf(
  43             HttpHeaders.CONTENT_TYPE to MediaType.APPLICATION_JSON_VALUE,
  44             HttpHeaders.ACCEPT to MediaType.APPLICATION_JSON_VALUE,
  45             HttpHeaders.AUTHORIZATION to "Basic $encodedCredentials"
  46         )
  47     }
  48
  49     override fun convertToBasicHeaders(headers: Map<String, String>):
  50         Array<BasicHeader> {
  51             val customHeaders: MutableMap<String, String> = headers.toMutableMap()
  52             // inject additionalHeaders
  53             customHeaders.putAll(verifyAdditionalHeaders())
  54
  55             if (!headers.containsKey(HttpHeaders.AUTHORIZATION)) {
  56                 val encodedCredentials = setBasicAuth(
  57                     getRestClientProperties().username,
  58                     getRestClientProperties().password
  59                 )
  60                 customHeaders[HttpHeaders.AUTHORIZATION] =
  61                     "Basic $encodedCredentials"
  62             }
  63             return super.convertToBasicHeaders(customHeaders)
  64         }
  65
  66     private fun setBasicAuth(username: String, password: String): String {
  67         val credentialsString = "$username:$password"
  68         return Base64.getEncoder().encodeToString(
  69             credentialsString.toByteArray(Charset.defaultCharset())
  70         )
  71     }
  72 }